Buy and fit a 'Xclamp fix kit' they are extremely easy to fit and it fixed it instantly. I had 2 consoles with 2 different errors (red ring and no video) and this kit has fixed them both. Search 'XBOX 360 RROD REPAIR KIT X CLAMP XCLAMP FIX E 74 ERROR' on ebay, they are under £5. Can't believe I sat here thinking about paying just over £20 to get someone else to fix it the same way.